I've been looking around for you, but all I can seem to find is revised rules for 3rd-6th edapparently they had rules for the termite in the inquisitor mag they put out but you may be able to find what you need from torrents. There are a couple of basic datafaxes for squat vehicles for 2nd ed (the bikes and tanks) but that's all I have.

Send me your E-Mail via pm and I'll send you the Squats "Codex" from Inquisitor Magazine 15 along the Datafax of the Termite (unfortunately the unbalanced one of the 2 versions) as a PDF. I have made an office document for the other version with some optional rules for balancing (untested). I have never been able to track down the other datafax, I only found the different rules in an old discussion.

The IM #15 Squats army has a very nice list (actually 2) with unique rules and weapons.

_________________For once, his father did what Tyrion asked him. The proof was the sudden stench, as his bowels loosend in the moment of death. Well, he was in the right place for it, Tyrion thought. But the stink that filled the privy gave ample evidence, that the oft-repeated jape about his father was just another lie.
Lord Tywin Lannister did not, in the end, ($@!) gold.